diff --git a/build/jam/FileRules b/build/jam/FileRules
index 2a702b4549..87cdd2a5eb 100644
--- a/build/jam/FileRules
+++ b/build/jam/FileRules
@@ -201,10 +201,11 @@ rule ExtractArchive directory : entries : archiveFile : grist
 	# <directory> - The directory into which to extract the archive file. The
 	#               directory is created is by this rule and it is the target
 	#               that the extract action is associated with.
-	# <entries>   - The entries of the zip file one is interested in. The rule
-	#               always unzips the complete zip file, from the given entries
-	#               the rule creates targets (using <grist>) representing the
-	#               unzipped entries. Those targets are returned by the rule.
+	# <entries>   - The entries of the archive file one is interested in. The 
+	#               rule always exctracts the complete archive file, from the 
+	#               given entries the rule creates targets (using <grist>) 
+	#               representing the extracted entries. Those targets are 
+	#               returned by the rule.
 	# <archiveFile> - The archive file target to extract.
 	# <grist>     - The grist used to create targets from <entries>. Defaults to
 	#               "extracted".